CVE-2024-45341: Go Standard Library crypto/x509

Medium severity, CVSS 6.1. EPSS: 0.5% chance of exploitation in the next 30 days.

A certificate with a URI which has a IPv6 address with a zone ID may incorrectly satisfy a URI name constraint that applies to the certificate chain. Certificates containing URIs are not permitted in the web PKI, so this only affects users of private PKIs which make use of URIs.

Affected products

• Go Standard Library crypto/x509: before 1.22.11 (fixed in 1.22.11); from 1.23.0-0, before 1.23.5 (fixed in 1.23.5); from 1.24.0-0, before 1.24.0-rc.2 (fixed in 1.24.0-rc.2)

Published 2025-01-28. Last modified 2026-06-17.